Malware Analysis Report

2025-01-19 07:24

Sample ID 231219-mcbx4sbcd3
Target 02a5648e74d829600addced61742eee1
SHA256 2e27c7145c7099b9f170fb1916d315246fe2735b73d1d0faa5a786db1e536c73
Tags
tinba banker persistence trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2e27c7145c7099b9f170fb1916d315246fe2735b73d1d0faa5a786db1e536c73

Threat Level: Known bad

The file 02a5648e74d829600addced61742eee1 was found to be: Known bad.

Malicious Activity Summary

tinba banker persistence trojan upx

Tinba / TinyBanker

UPX packed file

Adds Run key to start application

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-19 10:18

Signatures

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-19 10:18

Reported

2023-12-19 11:00

Platform

win10v2004-20231215-en

Max time kernel

7s

Max time network

11s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2636EE6D = "C:\\Users\\Admin\\AppData\\Roaming\\2636EE6D\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Windows\system32\taskhostw.exe

taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\02a5648e74d829600addced61742eee1.exe

"C:\Users\Admin\AppData\Local\Temp\02a5648e74d829600addced61742eee1.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 5.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp

Files

memory/448-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/448-1-0x00000000004C0000-0x00000000004C1000-memory.dmp

memory/3408-2-0x0000000000E40000-0x0000000000E46000-memory.dmp

memory/448-4-0x0000000002220000-0x0000000002C20000-memory.dmp

memory/3408-3-0x0000000000E40000-0x0000000000E46000-memory.dmp

memory/2076-5-0x0000000077932000-0x0000000077933000-memory.dmp

memory/3408-6-0x00007FFC2788D000-0x00007FFC2788E000-memory.dmp

memory/2076-7-0x0000000000AE0000-0x0000000000AE6000-memory.dmp

memory/448-8-0x0000000000400000-0x0000000000428000-memory.dmp

memory/3408-9-0x00007FFC27A20000-0x00007FFC27A21000-memory.dmp

memory/2484-13-0x0000000000910000-0x0000000000916000-memory.dmp

memory/2740-14-0x0000000000790000-0x0000000000796000-memory.dmp

memory/2472-16-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/3408-15-0x0000000000E90000-0x0000000000E96000-memory.dmp

memory/3756-20-0x0000000000220000-0x0000000000226000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-19 10:18

Reported

2023-12-19 10:58

Platform

win7-20231215-en

Max time kernel

150s

Max time network

153s

Command Line

C:\Windows\Explorer.EXE

Signatures

Tinba / TinyBanker

trojan banker tinba

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\4BF2E50A = "C:\\Users\\Admin\\AppData\\Roaming\\4BF2E50A\\bin.exe" C:\Windows\SysWOW64\winver.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\winver.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\02a5648e74d829600addced61742eee1.exe

"C:\Users\Admin\AppData\Local\Temp\02a5648e74d829600addced61742eee1.exe"

C:\Windows\system32\Dwm.exe

"C:\Windows\system32\Dwm.exe"

C:\Windows\system32\taskhost.exe

"taskhost.exe"

C:\Windows\SysWOW64\winver.exe

winver

Network

Country Destination Domain Proto
US 8.8.8.8:53 spaines.pw udp
US 216.218.185.162:80 spaines.pw tcp
US 8.8.8.8:53 uyhgqunqkxnx.pw udp
US 104.131.68.180:80 uyhgqunqkxnx.pw tcp
US 8.8.8.8:53 vcklmnnejwxx.pw udp
US 216.218.185.162:80 vcklmnnejwxx.pw tcp
US 8.8.8.8:53 cmnsgscccrej.pw udp
US 216.218.185.162:80 cmnsgscccrej.pw tcp
US 8.8.8.8:53 evbsdqvgmpph.pw udp
US 216.218.185.162:80 evbsdqvgmpph.pw tcp

Files

memory/1132-0-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1132-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1204-2-0x0000000002A60000-0x0000000002A66000-memory.dmp

memory/1132-4-0x0000000001F00000-0x0000000002900000-memory.dmp

memory/1204-3-0x0000000002A60000-0x0000000002A66000-memory.dmp

memory/2404-7-0x0000000077E00000-0x0000000077E01000-memory.dmp

memory/1204-5-0x0000000002A60000-0x0000000002A66000-memory.dmp

memory/2404-6-0x0000000000140000-0x0000000000146000-memory.dmp

memory/2404-8-0x0000000077DFF000-0x0000000077E00000-memory.dmp

memory/1204-10-0x0000000077C51000-0x0000000077C52000-memory.dmp

memory/2404-9-0x0000000077DFF000-0x0000000077E01000-memory.dmp

memory/2404-11-0x0000000000AC0000-0x0000000000AD6000-memory.dmp

memory/1132-12-0x0000000000400000-0x0000000000428000-memory.dmp

memory/1132-13-0x0000000001F00000-0x0000000002900000-memory.dmp

memory/2404-16-0x0000000000180000-0x0000000000181000-memory.dmp

memory/1204-23-0x0000000002A10000-0x0000000002A16000-memory.dmp

memory/1180-21-0x0000000001AC0000-0x0000000001AC6000-memory.dmp

memory/1088-24-0x0000000000170000-0x0000000000176000-memory.dmp

memory/1088-25-0x0000000077C51000-0x0000000077C52000-memory.dmp

memory/1180-26-0x0000000001AC0000-0x0000000001AC6000-memory.dmp

memory/1204-27-0x0000000002A10000-0x0000000002A16000-memory.dmp

memory/2404-31-0x0000000000190000-0x0000000000191000-memory.dmp

memory/2404-32-0x0000000000140000-0x0000000000146000-memory.dmp